Abstract:
1. The reaction of trichloroacetyl isocyanate with acyclic and cyclic 1,3-dienes proceeds by the scheme of 1,2-cyclo-addition with the formation of 2-azetidinone derivatives. 2. The saponification of the adducts makes it possible to obtain previously unknown unsaturated β-aminocarboxylic acids. © 1969 Consultants Bureau.